From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A5ABEB64DC for ; Sun, 9 Jul 2023 11:25:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232010AbjGILZh (ORCPT ); Sun, 9 Jul 2023 07:25:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231996AbjGILZg (ORCPT ); Sun, 9 Jul 2023 07:25:36 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 21C4F90 for ; Sun, 9 Jul 2023 04:25:35 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id AC25960B7F for ; Sun, 9 Jul 2023 11:25:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BC1A0C433C8; Sun, 9 Jul 2023 11:25:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1688901934; bh=vzfOgnglW74SezP6b//b2b0Edxpf4s5SKCYuaLE3cvE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DMkN/DSaftokGNyQfT2Hp/Fv6pIujC13b0ZfCd7seoM0CZkwCAmVGn33NACP57KHR +IoG40s07ENRHLYXFU8hhRQf02PbFtipf0m5BspP2KaweVLf+0fdbPH0cQDvT/Ktpq 1QHHDGLUF/aN/tZ4jvw5B+h/RHv1cgI8S6u6PINI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Robert Marko , Steen Hegelund , Krzysztof Kozlowski , Sasha Levin Subject: [PATCH 6.3 197/431] arm64: dts: microchip: sparx5: do not use PSCI on reference boards Date: Sun, 9 Jul 2023 13:12:25 +0200 Message-ID: <20230709111455.792081672@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230709111451.101012554@linuxfoundation.org> References: <20230709111451.101012554@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Robert Marko [ Upstream commit 70be83708c925b3f72c508e4756e48ad2330c830 ] PSCI is not implemented on SparX-5 at all, there is no ATF and U-boot that is shipped does not implement it as well. I have tried flashing the latest BSP 2022.12 U-boot which did not work. After contacting Microchip, they confirmed that there is no ATF for the SoC nor PSCI implementation which is unfortunate in 2023. So, disable PSCI as otherwise kernel crashes as soon as it tries probing PSCI with, and the crash is only visible if earlycon is used. Since PSCI is not implemented, switch core bringup to use spin-tables which are implemented in the vendor U-boot and actually work. Tested on PCB134 with eMMC (VSC5640EV). Fixes: 6694aee00a4b ("arm64: dts: sparx5: Add basic cpu support") Signed-off-by: Robert Marko Acked-by: Steen Hegelund Link: https://lore.kernel.org/r/20230221105039.316819-1-robert.marko@sartura.hr Signed-off-by: Krzysztof Kozlowski Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/microchip/sparx5.dtsi | 2 +- arch/arm64/boot/dts/microchip/sparx5_pcb_common.dtsi | 12 ++++++++++++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi b/arch/arm64/boot/dts/microchip/sparx5.dtsi index 0367a00a269b3..5eae6e7fd248e 100644 --- a/arch/arm64/boot/dts/microchip/sparx5.dtsi +++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi @@ -61,7 +61,7 @@ arm-pmu { interrupt-affinity = <&cpu0>, <&cpu1>; }; - psci { + psci: psci { compatible = "arm,psci-0.2"; method = "smc"; }; diff --git a/arch/arm64/boot/dts/microchip/sparx5_pcb_common.dtsi b/arch/arm64/boot/dts/microchip/sparx5_pcb_common.dtsi index 9d1a082de3e29..32bb76b3202a0 100644 --- a/arch/arm64/boot/dts/microchip/sparx5_pcb_common.dtsi +++ b/arch/arm64/boot/dts/microchip/sparx5_pcb_common.dtsi @@ -6,6 +6,18 @@ /dts-v1/; #include "sparx5.dtsi" +&psci { + status = "disabled"; +}; + +&cpu0 { + enable-method = "spin-table"; +}; + +&cpu1 { + enable-method = "spin-table"; +}; + &uart0 { status = "okay"; }; -- 2.39.2